Which of the following is not an advantage to using standard costs? O a. Facilitate management planning and control O b. Simplify inventory costing and can reduce record-keeping costs . Helps to set the selling price for the product or service O d. The company can use the information to determine who is doing something wrong Langley Manufacturing Ltd. has budgeted fixed manufacturing overhead at $100,000 and per unit variable costs of $3.50 for Direct Materials; $8.95 for Direct Labourand $4.10 for Variable Overhead. With a relevant range of 10,000 to 15,000 units what are the total costs for activity levels of 10,000 units and 14,000 units, respectively? O a $100,000 and $140,000 O b. $165,500 and $231,700 O c. $265,500 and $331,700 O d. $265,500 and $381,700 ABC Company incurs the following costs in producing 25,000 units of product: Direct materials $175,000 Direct labour 200,000 Variable manufacturing overhead 150,000 Fixed manufacturing overhead 725,000 An outside supplier has offered to supply the 25,000 units at $15.00 each. All of ABC's related variable costs, but only $475,000 of the fixed costs, would be eliminated if the offer is accepted. Acceptance will result in a O a. savings of $625,000. O b. loss of $625,000. Oc savings of $400,000. O d. loss of $400,000